The 2017 Maserati GranTurismo is available as a 2-door, 4-seat coupe. Starting at $132,825, the 2017 Maserati GranTurismo Sport Coupe is powered by a 4.7L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 13-mpg in the city and 21-mpg on the highway. The top of the line 2017MaseratiGranTurismoMC Centennial Convertible , priced at $ 182,009 , is powered by a 4.7L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 13-mpg in the city and 20-mpg on the highway.